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| CAS No.: | 6317-18-6 |
|---|---|
| Name: | Methylene dithiocyanate |
| Article Data: | 9 |
| Molecular Structure: | |
|
|
|
| Formula: | C3H2N2S2 |
| Molecular Weight: | 130.194 |
| Synonyms: | Methylenethiocyanate;Methylenedirhodanide;NSC 40464;Nalco 5793;Nalco D 2303;NalflocN 206;Proxel MB;Slimicide MC;V 709;WT 307B;Thiocyanicacid, methylene ester (6CI,7CI,8CI,9CI);Antiblu 3737;Antiblu 3738;Basiment540;Bis(thiocyanato)methane;Busan 110;Dithiocyanomethane;Kilstain;Metasol T 10;Methylene bis(thiocyanate);Methylene dithiocyanate; |
| EINECS: | 228-652-3 |
| Density: | 1.403 g/cm3 |
| Melting Point: | 104-106 °C(lit.) |
| Boiling Point: | 285.2 °C at 760 mmHg |
| Flash Point: | 126.3 °C |
| Solubility: | Decomposes in water. Slightly soluble in organic solvents. |
| Appearance: | yellow crystalline powder |
| Hazard Symbols: |
 T, N, T+
|
| Risk Codes: | 23/24/25-36/37-50-43-34-26 |
| Safety: | 26-28-36/37/39-45-61 |
| Transport Information: | UN 2811 6.1/PG 2 |
| PSA: | 98.18000 |
| LogP: | 1.37246 |
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Chemistry
Molecular Structure:
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Molecular Formula: C3H2N2S2
Molecular Weight: 130.1914
IUPAC Name: Thiocyanatomethyl thiocyanate
Synonyms of Methylene dithiocyanate (CAS NO.6317-18-6): 3-03-00-00288 (Beilstein Handbook Reference) ; BRN 1743370 ; CCRIS 636 ; CP 17879 ; Caswell No. 565 ; EINECS 228-652-3 ; EPA Pesticide Chemical Code 068102 ; HSDB 4497 ; Methane, dithiocyanato- ; Methylendirhodanid ; Methylendirhodanid [Czech] ; Methylendithiokyanat ; Methylendithiokyanat [Czech] ; Methylene bis(thiocyanate) ; Methylene thiocyanate ; Methylenebis(thiocyanate) ; Methylenedirhodanid ; Methylenedirhodanid [German] ; Methylenedirhodanide ; NSC 40464 ; Nalco D-1994 ; Nalfloc N 206 ; Proxel MB ; Thiocyanic acid, methylene ester ; V 709 ; Thiocyanic acid, C,C'-methylene ester ; Thiocyanic acid, methylene ester
CAS NO: 77668-42-9
Classification Code: Reproductive Effect ; Tumor data
Melting Point: 104-106 °C
Index of Refraction: 1.6
Molar Refractivity: 31.76 cm3
Molar Volume: 92.7 cm3
Surface Tension: 71.1 dyne/cm
Density: 1.403 g/cm3
Flash Point: 126.3 °C
Enthalpy of Vaporization: 52.42 kJ/mol
Boiling Point: 285.2 °C at 760 mmHg
Vapour Pressure: 0.00284 mmHg at 25°C
Uses
Methylene dithiocyanate (CAS NO.6317-18-6) is used for the manufacture of cables, wires, tires and other rubber products. It is a Kind of efficient, broad-spectrum sterilization algicide.
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intravenous | 3600ug/kg (3.6mg/kg) | U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. Vol. NX#03787, | |
| rabbit | LDLo | skin | 398mg/kg (398mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES LIVER: OTHER CHANGES | National Technical Information Service. Vol. OTS0545751, |
| rabbit | LDLo | subcutaneous | 20mg/kg (20mg/kg) | BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD VASCULAR: BP LOWERING NOT CHARACTERIZED IN AUTONOMIC SECTION | Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. Vol. 150, Pg. 257, 1930. |
| rat | LD50 | oral | 55mg/kg (55mg/kg) | Developments in Industrial Microbiology. Vol. 12, Pg. 404, 1971. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Safety Information of Methylene dithiocyanate (CAS NO.6317-18-6):
Hazard Codes: N 
,T+ 
Risk Statements: 23/24/25-36/37-50-43-34-26-25
23/24/25: Toxic by inhalation, in contact with skin and if swallowed
36/37: Irritating to eyes and respiratory system
25: Toxic if swallowed.
26: Very toxic by inhalation.
34: Causes burns.
43: May cause sensitization by skin contact.
50: Very toxic to aquatic organisms.
Safety Statements: 26-28-36/37/39-45-61
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
28A: After contact with skin, wash immediately with plenty of water.
36/37/39: Wear suitable protective clothing, gloves and eye/face protection.
45: In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
61: Avoid release to the environment. Refer to special instructions/safety data sheets.
RIDADR: UN 2811 6.1/PG 2
WGK Germany: 3
RTECS: XL1560000
HazardClass: 8
PackingGroup: II
Poison by ingestion, intravenous, and subcutaneous routes. When heated to decomposition it emits very toxic fumes of NOx and SOx. See also THIOCYANATES.
Specification
First Aid Measures of Methylene dithiocyanate (CAS NO.6317-18-6):
Ingestion: Do not induce vomiting. Corrosive chemicals will destroy the membranes of the mouth, throat, and esophagus and, in addition, have a high risk of being aspirated into the victim's lungs during vomiting which increases the medical problems. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Immediately transport the victim to a hospital. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. Do not induce vomiting. Transport the victim Immediately to a hospital.
Inhalation: Immediately leave the contaminated area; take deep breaths of fresh air. Immediately call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
Skin: Immediately flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. Immediately call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. Immediately transport the victim to a hospital for treatment after washing the affected areas.
Eyes:First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.
Storage of Methylene dithiocyanate (CAS NO.6317-18-6):
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.